CLAS Physics Database

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Measurement E18M28

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Experiment: E89-004, 2005

Spokespersons: R. A. Schumacher

Experiment comment: Correlated data on W & cos(theta) distribution are available in E18M37 and E18M38 measurements.

Publication:

R. Bradford, R. A. Schumacher, and CLAS Collaboration First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction // Submitted to Physical Review C

Quantity measured: C_z, dimensionless
Spin transfer coefficient C_z for circularly polarized photon beam and recoiling polarized hyperons.
Beam: γ, polarization: circular
Target: p (Z=1, A=1), polarization: none
Final state: K⁺ Λ, polarization: none

W :	2.296 GeV
E_γ :	2.341 GeV

Observable quantity measured (Y axis): C_z, dimensionless
Plot measurement data

Parameter (X axis): cos(θ), dimensionless

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ), dimensionless	C_z, dimensionless	Data errors, dimensionless
-0.75	1.015	0.296
-0.55	0.487	0.372
-0.35	1.266	0.307
-0.15	0.502	0.326
0.05	1.016	0.322
0.25	0.779	0.189
0.45	1.147	0.128
0.65	0.638	0.099
0.85	0.61	0.121